Reverse Telnet/Ssh - Sierra Wireless AirLink ES440 User Manual

ALEOS 4.4.0 Software Configuration User Guide
Table 10-1: Serial Port Configuration > Port Configuration
Field
Default Dial Mode
Host Authentication
Mode
PPP User ID
PPP Password
210
Description
Protocol used to send messages
Options are:
•
TCP
•
UDP (default)
You can also use an AT command to configure this field. See
Sets the authentication method the host uses for PPP. Options are:
•
None (default)
•
CHAP—The stronger of the two protocols. Recommended, provided it is supported by
all the client devices
•
PAP and CHAP—If CHAP is not supported by the client, the host reverts to PAP.
Sets the User ID for authentication
Sets the User Password for authentication
For information on configuring an AirLink device to use SSH PAD mode, see
PAD Mode on page 28.

Reverse Telnet/SSH

The Reverse Telnet/SSH feature allows you to connect to and configure a router
or other device that has a serial connection to your AirLink device.
You can have only one Reverse Telnet session open at a time. If a new Reverse
Telnet session is started, any existing Reverse Telnet connection will be closed.
However, you can simultaneously have:
• One Telnet session for Reverse Telnet (using the port configured in the
Device Port field on the Serial > Port Configuration page)
• One Telnet session for AT Commands (using the port configured in the
Remote Login Server Telnet Port field on the Services > Telnet/SSH page)
Note: If you are using Reverse Telnet and you have VPNs, the more VPN tunnels in use,
the greater the CPU load. This may result in lower throughput or greater delays.
To configure Reverse Telnet/SSH:
1. Log into ACEmanager and go to Serial > Port Configuration.
2. In the Startup Mode Default field, select Reverse Telnet/SSH.
3. In the Configure Serial Port field, set the speed, data bits, parity, and stop
bits. (The serial port configuration depends on the router you want to connect
to. For example, to connect to a Cisco router that has a default baud rate of
9600, enter 9600,8N1 in the Configure Serial Port field.)
S53 on page 322.
SSH
4116359